Water Pollution Abatement Technology. Capabilities and Costs,Irrigated Agriculture.

摘要

Pollution control options are examined for each of nine geographic regions,comprising 96% of the Nation's irrigated agriculture. Both structural and non-structural controls are considered for three alternative levels of control,with different controls applicable depending upon whether the land is drained or undrained. Aggregated cost estimates (in 1973dollars) range from $296million to $4,450million depending upon the treatment level selected,with corresponding annual costs of $143million to $491million. Costs and effectiveness of control measures will vary widely depending on existing irrigation practices.